Safety device for elevators



'June 22 1926. 1,590,081

5. CHRISTIAN swan DEVICE FOR ELEVATORS Filed March 2. 1925 2 Sheets-Sheet 1 45 A1 X'ORNEY WITNESS:

Jun 22,1926. 1,590,081

S. CHRISTIAN SAFETY DEVICE FOR ELEVATORS Filed March 2. 1925 2 Sheets-Sheet 2 INVENTOR ATTCR N EY WITNESS:

Patented June 22, 1926.

cause stares V rseaesi .e DEVICE :FQB seasesets.

Application filed March 2, 1925. Serial No. 12,653.

6 tween the elevator and the ceiling of a building containing the elevator.

Another object of the invention is to pro vide a movable section in the ceiling of each floor of the building, adjacent the elevator shaft so that anything projecting from the elevator will strike this movable section and cause it to move upwardly, with means for causing this upward movement to act upon the elevator mechanism and stop the elevator.

This invention also consists in certain other features of construction and. in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, ref erence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a sectional view through an elevator shaft and the adjacent floors of a building, showing the invention in use.

Figure 2 is an enlarged sectional view through a floor and ceiling portion of the building.

Figure 3 is a front view of Figure 2.

Figure 1 is a plan View of Figure 3, with a portion of the flooring removed.

Figure 5 is a detail view showing the action of the forked member on the collar of the cable.

Figure 6 is a view of the top forked member.

Figure 7 is a view of the lower forked member.

In these views, 1 indicates a hinged section of a ceiling which is placed in each floor of the building passed by the elevator. This section is held in its horizontal position by a flexible member 2 which connects it with the flooring 3. Thus anything projecting from the door of theelevator A will strike this section 1 and cause it to move upwardly with the elevator. This movement will be communicated to a forked lever 4, pivot d at 5 a d connected by a link. 8 with a bar "Z on the section 1. The forked part of the lever passes under a col lar 8 on a vertically arranged rod 9 which is slidably supported adjacent the elevator shaft by brackets 10 so that the rod will be raised when a forked lever 4 is moved by the upward movement of a section. The upper end of the rod 9 engages the inner end of a forked block 11 which is pivotally supported by a bracket 12 in the housing 13 of the elevator mechanism and the prongs of this block are adapted to engage a collar 14: fastened to the cable 15 for controlling" the movement of the elevator, this cable being attached to the usual mechanism for operating the elevator by the chain 16.

From the foregoing it will be seen that when the section 1 is moved upwardly, the rod 9 is pushed upwardly against the block 11 so as to move the forked end of the block against the collar 14 on the actuating cable and thus cause the cable toact to stop the elevator. This will prevent a person being crushed between the floor of the elevator and the ceiling of a floor passed by the elevator.

It will be seen that the parts are so arranged.

that a ceiling section may be moved to actuate the rod 9 without being interfered with by the forked levers of other sections as each collar 8 simply rests upon the forked part of the lever. This arrangement will permit a section 1 with its associated parts to be placed at each landing inthe elevator shaft. The drawings, however, show but one of these sections.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the sev- Y eral parts, provided that such changes fall within the scope of the appended claim.

Vhat I claim is v A safety device for elevators, comprising in combination with a pivoted platform arranged adjacent the elevator pit, a lever pivoted between its ends and including a forked extremity adapted to straddle the operating cable of the elevator, a collar carried by said cable and arranged to engage said lever, a vertically disposed rod arranged parallel with said cable and mounted for sliding movement beneath said lever, and adapted to rock the latter in one direction when the rod is elevated,- a second lever pivoted between its ends and including" a bifurcated extremity arranged obliquely to said second mentioned lever and said platform, whereby movement of the latter actuates the said second lever for the purpose 10 specified.

In testimony whereof I affix my signature.

SHELDON CHRISTIAN. 

